Ore-crusher



(No Model.) 2 sheets-sheet 1;

B UREN A y 0R13 URUSHBR. I Da-376,928. Patented Jan. 24, 1888.

RICHARDUREN, or HouGH'roN, MICHIGAN.A

`erreur-I,

ORE-CRUSHER.

SPECIFICATION forming part of Lettersfatent Nc5376,928, dated January24,1888, y

Y Appncmiqn med August 20.1886. serial No, 211,367. (No model.)

To all whom it may concern:

Be it known that I, RICHARD UREN, a citizen of the United Statesresiding at'Houghton, in the county of Houghton, in the State ofMichigan, have invented certain new and useful Improvements yi nlOre-Crushers, of which I do declare the following to be a full, clear,

and exact description, reference being hadto the accompanying drawings,forming part of this specification. y

My present invention has reference to Vthat class of ore-crusherswherein the crushing of the' ore is effectedupon` ahorizontally-arranged bed by means of rolls which rotate upon shaftsthat project laterally from and are driven by a central vertical shaft.y Anobjeo-` tion heretofore encountered in the class of oref Crushers inwhich the crushing-rolls arecarried by lhorizontally-arranged shafts is'that the crushing-rolls, particularlywheu revolving at a high rateofspeedfare Vimpelled by their centrifugal force toward a movement inoutward direction, and are thus caused tobecome unequally Worn,and hencetend to cause an unequal wear upon the bed of the machine,

which eventually impairs the uniform an f perfect action of the machine.f

' the bottom of the single incline of the track, and would cause theentire wear to come upon one part-of the flat rims of thecrushing-rolls,rendering the otherpart practically inert, and

` lifting the rolls in such a manner as to over- 5o ever, the rollswerecarried"byhorizontallycome the advantage sought to be attainedbyarranging the track or bottom ofthe ,bed upon. an incline. It has alsobeen heretofore Vproposed to formthe crushing-rolls with doublei inclineor V-shaped peripheries, and to form a correspondinglyshaped track inthe bed of the machine. In this last construction, howfore pointed out.

The object of my'invention is to so improve the'relative constructionand arrangement of 5 5 the crushingv rolls and bed that the' centrifugalyforce of the crushing-.rolls will be neutralized,

and at the same time a uniform action of the Y rolls will be secured.

To this end myiuvention consists-in the..v

combination, with acircular crushingfbedhav-4 inga double-inclinedtrack, of crushing-rolls having their peripheries provided with double"inclines corresponding'with the'track, said rolls being mounted ,uponupwardly and out;l

wardly inclined shafts. Y

My invention also consists inthe construc-V tion and arrangement of feedmechanism hereinafter described, illustrated -in the aecomg panyingdrawings,and particularly defined in the claims atthe end o'fgjthisspecification.

' Figure 1 is a view in-,side elevation, parts being shown yin verticalsection for the purpose of better illustration. Fig. 2.is a plan viewofthe feed-hopper and bin, the-,automatic feed-'gage,and a portion'ofthe crushing'rolls and bed. Fig. 3 is an enlarged detail view upon lineaux of Fig. 2.

A- designates the main frame of the l chine, Withinvwhich will bejournaled, in the usualr or any suitable manner, the maiud'rive- ShaftAB and the vertical shaft C, properlyv geared thereto, the lower end offthis vertical `shaft() being journaled at a central point fwithin thecircular ybed D of the machine. Y

From the lower .portionof the vertical shaft C project the lateralvshaftsEz, the in ner ends of said shafts being journaled withinvsuitable ,f

bearings` upon a 'sleeve that is fastened to the shaft C, this sleeveand its vadjuncts.being of any suitableconstruction.

The shafts'E,y

as ciearly shown in Fig. l of the drawings,a're. A,

inclinedv upwardly 1in outward direction, and upon theseshafts are keyedthe crushing-rolls F, theL outer peripheries of which are suitablyconformed to iit the track dp-ofl thejcrushing-v bedfandfthese ,shafts Eare also journaledrin suitable sleeveaEf, which are ,sustained bythe]yarmsE-projecting from the sleeve thatgen:

circles rfthe-vertical-shaft.- jflhecr'ushinglbed loor i D will beprovided with the inner and outer curbs, D' and D2, which serve todeliver the ore properly to the bed.

It will be observed that the track d of the crushingbed is ofdouble-inclined or V shape, thus corresponding to the shape of the peripherics of the crushing-rolls, and by employing this shape ofcrushing-rolls and track, in connection with the inclined shafts forsustaining the crushing-rolls, a uniform wear upon the surface of therolls and beds is attained, and at the same time, by reason oftlieinclination of the shafts E, the centrifugal action of the rolls isovercome. It will also be noticed that the outer inclined portion of thetrack d vis higher and steeper than the inner inclined portion of saidtrack, since upon this outer portion the centrifugal force of the rollswill be exerted.

At the side and abover the bed of the ma chine is located the ore-bin G,provided at its bottom with a shaking hopper, G', suitably hingedthereto, as shown at g, the inner end of this hopper G projecting aslight distance beyond t-he outer curb, D', of the crushingbed, so as toproperly deliver the ore upon the bed. This hopper G is preferablysustained by means of the rod H, connected to the hopper by the loops 7Land attached at its upper end to a lever, I, that is pivoted to abracket, I', and is provided at its Vrear'end with the cord I2, thelower portion of which is wound around the pulley K, journaled upon thestandard k, bolted to the framework of the machine. The pulley K isprovided with a ratchet-wheel, K', which engages with a suitablecheck-pawl, K2, and with a crank-handle, K3, by means of which thepulley and the ratchet-wheel will be turned. By turning the crank orhandle K3 the cord I2 can be wound upon the pulley K, in order to x thedelivery-hopper G' at any desired elevation with respect to the curb Dof the crushing-bed, and consequently to vary the amount of ore to bedelivered into the machine at each descent ofthe hopper. At the side ofthe crushing-bed, and journaled upon a shaft, m, sustained by a bracket,M, are placed the two arms or levers N and N', which constitute thefeed-gage that serves to properly actuate. the deliveryhopper G. Each ofthese arms or levers is keyed to the shaft m by means of a suitablesetscrew, m', and the inner end of the arm or lever N extends beneaththe bottom of the hopper G, and the inner end of the arm or lever Nextends above the edge of the outer curb of the crushing-bed D. The armsor levers N and N are preferably provided at their free ends with thefriction-rolls n and a', the roll n bearing against the u'nder side ofthe hopper G', and the roll a projecting into the path of the extendedends of the shafts E of the crushing-rolls, which shafts, it will beobserved, project beyond the outer faces of the crushing-rolls and to apoint above the edge of the curb D.

From the foregoing construction it will be seen that when motion hasbeen imparted to the vertical shaft C, so as to cause a rotation ot' thecrushing-rolls, the projecting ends of the shafts E will successivelystrike against the friction-roll n on the end of the arm or lever N anddepress this arm, thereby causing it in turn to rock the shaft m andlift the arm or lever N, which in turn will lift the delivery-hopper G',and as the shaft E passes from above and releases the arm or lever N thehopper G is permitted t0 instantly drop and to shake out a quantity ofore onto the crushing-bed. The ore thus continues to'be dischargedautomatically from the hopper until a sufficient quantity has beendelivered onto the crushing-bed to elevate the crushing-rolls suchdistance that the projecting ends of their shafts E rise above and donot strike the frictiou-roll a of the lever N. It is evident that assoon as a fresh supply of ore is needed upon the crushing-bed thedescent of the crushingrolls will occur,and the projecting ends oftheshafts E will at once begin to automatically operate the feed-gage, andtlius secure a uniform and constant supply of ore upon the bed of themachine. By means of the pulley K and its adjuncts the hopper G can beraised or lowered,in order to determinethe quantity of ore that shall bedischarged therefrom at each stroke of the feed arln or lever N. It willbe readily understood that the details of con` struction above set outmay be varied without departing from the scope of my invention.

Having thus described my invention,what I claim as new, and desire tosecure by Letters Patent is- 1. In an ore-Crusher, the combination oftheroller-shafts, a lever operated by said shafts, an ore-supply bin havinga movable hopper engaged by said lever, and suitable means forregulating the supply of material to the crusher, substantially asdescribed.

2. In an ore'crusher, the combination, with the roller-shafts, of theore-supply bin having a movable hopper, a rod supporting said hopper, alever attached to the Crusher, having one end engaging with said hopperand its opposite end engaged by said shafts, whereby the hopper isactuated so as to discharge the ore into the crusher, and suitable meansfor regulating the discharge of the material from the hopper into theCrusher, substantially as described. V

3. In an ore-Crusher, the combination of the bed D, the track d,crushing-rolls F, shafts E, extending beyond said rolls, the ore-supplybin G, the vibrating hopper G', the levers N and N, arranged to come incontact with the ends of said shafts, and means for imparting motion tothe rolls, substantially as described.

RIOI-IARD UREN.

-Vitnessesz Jas. H. BLANDY, E. J. BERKTOLD.

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